My chickens were afraid of the misters I installed for them - haha! I can be out there with power tools, and they don't even react. Turn on those misters, and they all run and cower!
I'm so sorry! I feel your pain! It hit 106 here in the CA Central Valley today. It's 79, though, now. Not so bad as NV!
I, too, have a fan and ice bottles in their coop. I have found that lots of shade over the coop has made the biggest difference (I use a tarp and a shade cloth, and part is...